Hikami Larkin Nagaoka analysis of topological insulators

We report the WAL related magneto-conductivity analysis of topological insulators (Bi₂Te₃ and Bi₂Se₃) fitted using the Hikami Larkin Nagaoka (HLN) equation. At lower applied magnetic fields and temperatures, the studied topological insulators (Bi₂Te₃ and Bi₂Se₃) followed the HLN equation. Further, the extracted values of the fitting parameters i.e., phase coherence length (l_φ) and the pre-factor (α) suggested that the electronic conduction mechanism in these topological insulators is dominated by both surface states driven weak anti localization (WAL), as well the bulk WL (weak localization) states. Summarily, the short letter discusses briefly on the competing effect of WAL and WL conduction mechanism of topological insulators analyzed by the HLN model.